SCHEDULE II CONDENSED FINANCIAL INFORMATION OF REGISTRANT PARENT COMPANY ONLY (STATEMENTS OF INCOME AND COMPREHENSIVE INCOME) (Parenthetical) (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($)
Condensed Financial Statements Captions [Line Items]
Income from discontinued operation, income tax expense	$ 0.5

Amount of tax expense (benefit) on gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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